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FERTILISER Spreader design now even better W ALCO has been manufacturing and selling spreaders since 2000, when production of the popular and durable Allspread 3.50 began. As a result of farmer and dealer feedback, new models and sizes have been constantly added to the range. Currently there are 11 different models available with different specs available for each model. Walco has improved the shrouding around the spinner on the popular Allspread 0.70 caus-mag spreader, meaning less caus-mag will get on the machine and operator. And new to the range is the Allspread T1300 twin spinner three-point linkage PTO I N recent years palm kernel (PKE) has been used in many dairy farm systems to boost milk production, often in place of nitrogen fertiliser because urea has been seen as ‘too expensive’. While PKE has a place in dairy farm sys- tems to supplement stock energy intakes or provide a more balanced diet, farmers should always consider the true cost of such feeds when making the decision on how best to boost production, said Ballance technical consultant Aaron Stafford. “Based on today’s N-rich urea price of $650 per tonne and an average price of $300 driven spreader. This machine will take a 1 tonne bag of urea, has a spreading width of about 38m with urea and has the same spread pattern either side of the machine. a tonne for PKE, urea still comes out on top as the most cost-effective form of feed.” Taking a 10:1 response rate for urea (10 kg DM for every kg of N applied), which is eas- ily achievable in typical spring growing con- ditions, and including $100 per tonne for application, using nitrogen fertiliser to grow pasture means each kg DM grown costs 16.3 cents. The PKE, at 90 per cent dry matter is $333/tonne DM, or 33.3 cents/kg DM. Adding five cents for the cost of feeding out equals 38.3 cents/kg DM. “These calculations demonstrate that Nitrogen still cheaper than palm kernel in the long run using nitrogen fertiliser is still 22 cents/ kg DM cheaper than PKE, or less than half the price,” said Mr Stafford. “PKE and spring nitrogen-boosted pasture have similar metabolisable energy (ME) lev- els; hence equal amounts of pasture or PKE on a dry matter basis will provide the same amount of energy. It should be noted, how- ever, that other factors may impact on the decision of which supplement to feed. Farmers considering using nitrogen to achieve spring growth should contact their local Ballance technical sales representative for further advice on 0800 222 090. This twin spinner has a robust galvanised steel frame and strong corrosion-proof plas- tic hopper. The plastic spinner guard has a stainless steel insert to stop wear and tear. The hopper has twin drop points operated by twin hydraulic rams. Walco tandem 3.50 trailed machines have proved popular this season. The main benefit with the tandem machines is the way they travel smoothly over rough and rutted ground, meaning less stress on the spreader, quad and the operator. For more information, please contact Walco Engineering, freephone 0800 355 544 or email sales@walco.co.nz 50 The Dairyman AUGUST 2009